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Priority claimed from DE3010844Aexternal-prioritypatent/DE3010844C2/de
Priority claimed from DE19803010845external-prioritypatent/DE3010845C2/de
Application filed by Ruhrgas AktiengesellschaftfiledCriticalRuhrgas Aktiengesellschaft
Priority claimed from EP81101962Aexternal-prioritypatent/EP0036609B1/de
Application grantedgrantedCritical
Publication of ATE4916T1publicationCriticalpatent/ATE4916T1/de